Well Steve's brief description of it to me was that I have a very lean patch right in the middle but once you push through that in the high rpm the afr maps almost perfectly....
But if it was just chipped in japan would adding the intercooler and boost control cause the mapping to be inaccurate???
I am going to find out these mysteries soon though as I need a service.... In high RPM running high boost I am starting to notice that the power is retarding.... its hard to explain but it sometimes cough's and splutters a bit but only under high rpm with high boost....
I plan to get the general service done, that problem looked into, try to unlock the mysteries of my car and get the rust cut out of the wheel arch in the near future